Answer:
18
Step-by-step explanation:
= -4 x (-5) - 2
= 20 - 2
= 18
Say she chooses topic A. She needs at least one book to arrive on time. The probability that no books arrive on time is 0.1 x 0.1 = 0.01 so the probability that at least one book arrives on time is 1 - 0.01 = 0.99.
Say she chooses topic B. She needs at least two books to arrive on time. The probability of no books arriving on time is 0.1 x 0.1 x 0.1 x 0.1 = 0.0001. The probability of exactly one book arriving on time is 4 x 0.1 x 0.1 x 0.1 x 0.9 = 0.0036 (binomial probability distribution formula - the 4 comes from 4C1). So the probability of her not getting enough books is 0.0001 + 0.0036 = 0.0037 and the probability she does get the books she needs on time is 1 - 0.0037 = 0.9963.
So she should choose topic B.
Diego is 1.2 times as heavy as Ricardo.
Step-by-step explanation:
Given,
Weight of Diego = 218 pounds
Weight of Ricardo = 181 pounds
Let,
x be the number of times.
Diego's weight = Ricardo's weight * Number of times
Dividing both sides by 181
Therefore;
Diego is 1.2 times as heavy as Ricardo.
Keywords: division, multiplication
Learn more about division at:
#LearnwithBrainly
Answer:
3 and 4/5
Step-by-step explanation:
5 2/5 = 27/5
1 3/5 = 8/5
27/5 - 8/5 = 19/5 = 3 and 4/5
Answer:
30%
Step-by-step explanation:
you devide 20 by 100 and 32 by 100 and you subtract the two numbers and you get 30% . im not sure if i did that right.
